Francis J. Zavada

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Aliquippa, PA, US

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Patents Grantslast 30 patents

Information Patent Grant
Translucent building block or the like
- Patent number D293477
- Issue date Dec 29, 1987
- Pittsburgh Corning Corporation
- Thomas J. Pirosko
- D25 - Building units and construction elements
Information Patent Grant
Translucent block for wall and column structures
- Patent number 4,651,486
- Issue date Mar 24, 1987
- Pittsburgh Corning Corporation
- Kenneth J. Erickson
- E04 - BUILDING